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US20020131824A1 - Floating platform to obtain electric power from sea waves - Google Patents

Floating platform to obtain electric power from sea waves Download PDF

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Publication number
US20020131824A1
US20020131824A1 US10/095,592 US9559202A US2002131824A1 US 20020131824 A1 US20020131824 A1 US 20020131824A1 US 9559202 A US9559202 A US 9559202A US 2002131824 A1 US2002131824 A1 US 2002131824A1
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Prior art keywords
sea
cable
electric power
floating platform
kinetic energy
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US10/095,592
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US6695536B2 (en
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Gines Sanchez Gomez
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08—Tide or wave power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1885—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is tied to the rem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/18—Buoys having means to control attitude or position, e.g. reaction surfaces or tether
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2205/00—Tethers
    • B63B2205/02—Tether payout means
    • B63B2205/06—Reels for tethers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • Patent W9914489 priority date Sep. 18, 1997: a buoy, located near coast, it picks up wave movements being transmitted said movements through levers.
  • the present invention by using floating platforms, takes advantage of kinetic energy of the sea. To pick up kinetic energy they are provided lathes and cables, by generating circular movements that are transmitted to electric generators (essentially of direct current).
  • a floating platform located on sea surface it has many movements, tides, currents, waves, winds, etc.
  • Oscillatory movements can be transformed in circular movements by providing a fixed benchmark, by example, by means of an anchorage from platform to sea bottom.
  • An appropriate system to pick up this oscillatory movements is by connecting anchorage on sea bottom to a cable. This cable rolls/unrolls up an axis with a helical recoverable spring. The axis that picks up the movement can be in the platform or on sea bottom.
  • the system can be adapted to use on deep bottoms, by example on high seas, by changing anchorage to bottom of water by a hanging weight, having the cable a certain length and elasticity.
  • FIG. 1 Platform—buoy to obtain electric power
  • Floating platform is formed by a buoy ( 1 ).
  • the buoy also is provided with a security anchorage (device not represented).
  • fixation cable ( 5 ) is rolled and unrolled up on lathe ( 3 ), inducing a sway movement on said lathe.
  • the direct current generator ( 2 ) generates an alternating current, this current, rectified, can be stored in a battery of electric accumulators.
  • the buoy must be shaped as a inverted U, placing between the sticks of the U the axis of lathe, with what, the cable rolls/unrolls up buoy externally, avoiding the hole ( 6 ).
  • each axis can be provided two direct current generators, one in each axis ends, with a pawl mechanism that allows each generator rotate in a single sense, opposed to generator of the other end, being connected each generator directly to accumulators.
  • a platform can be anchored to a weight.
  • the weight can have some mechanisms of the invention, unloading the platform.
  • batteries of platforms with developed capacity to capture energy from waves are fixed near a coast, they can be used like breakwater, because the platforms absorb a part of kinetic energy of waves.
  • a frequent special use can be when the captured energy is used in the own platform, like in signaling buoys.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

Floating platform fixed to sea bottom, provided with a lathe in that an anchorage cable is rolled by a recoverable spring, they allow to transform the kinetic energy of the waves in electricity by connecting the axis of lathe to electricity generators, electricity generators to rectifiers circuits, and rectifiers circuits to electric accumulators.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • Spanish patent application P200100640 dated Mar. 16, 2001 is priority. [0001]
  • Patent W9914489, priority date Sep. 18, 1997: a buoy, located near coast, it picks up wave movements being transmitted said movements through levers. [0002]
  • The present invention, by using floating platforms, takes advantage of kinetic energy of the sea. To pick up kinetic energy they are provided lathes and cables, by generating circular movements that are transmitted to electric generators (essentially of direct current). [0003]
    • BRIEF SUMMARY OF THE INVENTION
  • A floating platform located on sea surface it has many movements, tides, currents, waves, winds, etc. Oscillatory movements (waves) can be transformed in circular movements by providing a fixed benchmark, by example, by means of an anchorage from platform to sea bottom. [0004]
  • An appropriate system to pick up this oscillatory movements is by connecting anchorage on sea bottom to a cable. This cable rolls/unrolls up an axis with a helical recoverable spring. The axis that picks up the movement can be in the platform or on sea bottom. [0005]
  • The obtained circular movements, applied on axis, they can become electric power easily. [0006]
  • It is not necessary that these circular movements are always in the same sense if the appropriate electric circuits are provided. So, a circular movement applied on a direct current generator produces an alternating current, and this AC, through a rectifier, it can load an accumulator. [0007]
  • It is possible to change the anchorage to bottom of the water by anchorage to a weight that rests on bottom of the water, being the weight sufficiently big. [0008]
  • Ending, the system can be adapted to use on deep bottoms, by example on high seas, by changing anchorage to bottom of water by a hanging weight, having the cable a certain length and elasticity.[0009]
    • BRIEF DESCRIPTION OF THE FIGURES
  • FIG. 1. Platform—buoy to obtain electric power,[0010]
    • DETAILED DESCRIPTION OF THE INVENTION
  • It is schematized in FIG. 1 [0011]
  • Floating platform is formed by a buoy ([0012] 1).
  • Into the buoy there is a lathe ([0013] 3), on this lathe rolls up a cable (5) through a hole (6). Cable is fixed to sea bottom by a ring (not represented), or by a big weight, so that it cannot be moved by movements of the platform. Cable length is the biggest height that can reach the platform, including action of waves, staying stretched in the valley of a wave by effect of a helical spring (4), by acting on the lathe regarding the buoy body. The axis of lathe is connected to an electricity generator (2) of direct current, this generator is connected to a rectifier (8) through (7), and this rectifier is connected through (7) to an accumulator battery (10).
  • The buoy also is provided with a security anchorage (device not represented). [0014]
  • With surfs, platform raises and goes down, fixation cable ([0015] 5) is rolled and unrolled up on lathe (3), inducing a sway movement on said lathe. By this sway movement, the direct current generator (2) generates an alternating current, this current, rectified, can be stored in a battery of electric accumulators.
  • OTHER EMBODIMENTS OF THE INVENTION [0016]
  • The buoy must be shaped as a inverted U, placing between the sticks of the U the axis of lathe, with what, the cable rolls/unrolls up buoy externally, avoiding the hole ([0017] 6).
  • Alternatives to electronic circuits [0018]
  • Instead to use rectifiers, for each axis can be provided two direct current generators, one in each axis ends, with a pawl mechanism that allows each generator rotate in a single sense, opposed to generator of the other end, being connected each generator directly to accumulators. [0019]
  • Special anchorage shapes [0020]
  • It is possible invention use in deep waters, by hanging a weight from cable, having the cable a suitable length. Inertia weight works as an anchorage. [0021]
  • Also a platform can be anchored to a weight. The weight can have some mechanisms of the invention, unloading the platform. [0022]
  • INDUSTRIAL APPLICATION [0023]
  • According with previous paragraphs it is possible to take advantage from sea surfaces. [0024]
  • In addition, if batteries of platforms with developed capacity to capture energy from waves, are fixed near a coast, they can be used like breakwater, because the platforms absorb a part of kinetic energy of waves. [0025]
  • A frequent special use can be when the captured energy is used in the own platform, like in signaling buoys. [0026]

Claims (11)

I claim for:
1. Method to obtain electric power by using kinetic energy of sea waves characterized in that a floating platform is linked to a point placed at the sea bottom by an anchorage cable, p1 platform is moved with the oscillatory movement of the sea, being movement picked up by anchorage cable by rolling/unrolling up on an axis, like in a lathe, with a recoverable helical spring, being axis on the platform or on the sea bottom,
movements picked up by axis of lathe feed direct current generators, and generators feed rectifiers,
electric direct current from rectifiers feed accumulator.
2. Method to obtain electric power by using kinetic energy of sea waves according to claim 1, characterized in that joint to sea bottom is changed by a connection to a weight resting on the bottom.
3. Method to obtain electric power by using kinetic energy sea waves according to claims 1 and 2, characterized in that the anchorage weight is formed by the mechanisms of generation, accumulation and transformation of electric power, properly isolated.
4. Method to obtain electric by using kinetic energy of sea waves according to claim 1, characterized in that the joint to a fixed point is changed by the union to a weight hanging from the cable, having the cable a certain elasticity.
5. Floating platform to obtain electric power by using kinetic energy of sea waves characterized in that:
functioning anchorage to sea bottom,
functioning anchorage is connected to a fastening axis, by rolling/unrolling up directly on said axis,
length of functioning cable it is the maximum from sea bottom to sea top, including height of waves,
fastening axis has a recoverable helical spring to rolling up remaining cable,
fastening axis is connected to a direct current generator,
direct current generators are connected to rectifiers,
security anchorage to sea bottom, coast or another floating platform.
6. Floating platform to obtain electric power by using kinetic energy of sea waves, according to claim 5, characterized in that fastening axis, their associate electric generator and accumulators, they are on sea bottom, and cable is fixed directly to the floating platform.
7. Floating platform to obtain electric power by using kinetic energy sea waves, according to claims 5 and 6, characterized to be a buoy, having the devices into its body, entering functioning cable through a hole.
8. Floating platform to obtain electric power by using kinetic energy of sea waves, according to claims 5, to 7, without hole for functioning cable, characterized to be a buoy, shaped as an invested U, having fastening axis between the the two sticks of the invested U, and the rest of devices inside the buoy, rolling/unrolling up functioning cable externally to the buoy.
9. Buoy according to claims 7 and 8, characterized to be for marine signaling, by auto-feeding of electricity directly from electric accumulators.
10. Floating platform to obtain electric power by using kinetic energy of sea waves, according to claims 5 to 9, characterized in that functioning axis has a direct current generator in each one of its ends, with a pawl device to rotate each generator in a single sense, opposed to the generator of the other end, being connected each generator directly to accumulators.
11. Floating platform battery according to claims 5 to 10, specially oriented to the intensive exploitation of a coast, serving also as cushioning of waves, characterized in having several floating platforms, in one or several lines, with parallel disposition regarding the coast, to a certain distance of the sea shore.
US10/095,592 2001-03-16 2002-03-12 Floating platform to obtain electric power from sea waves Expired - Fee Related US6695536B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200100640 2001-03-16
ES200100640 2001-03-16
ESP200100640 2001-03-16

Publications (2)

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US20020131824A1 true US20020131824A1 (en) 2002-09-19
US6695536B2 US6695536B2 (en) 2004-02-24

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040124517A1 (en) * 2002-12-31 2004-07-01 George Hsieh Structural reinforcement for electronic substrate
WO2005054668A1 (en) * 2003-11-28 2005-06-16 Arlas Invest, S.L. Energy generating system using sea waves
WO2009090192A2 (en) * 2008-01-14 2009-07-23 Single Buoy Moorings Inc. Wave energy absorber
US20110116925A1 (en) * 2008-07-16 2011-05-19 Matthew Whitelaw Apparatus and method for energy extraction
WO2024175954A1 (en) 2023-02-22 2024-08-29 Abbasi Akbar Power generation from waves on the seacoast

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ES2170029B1 (en) * 2000-12-11 2003-11-01 Molina Jose Antonio Serrano ENERGY GENERATION SYSTEM FROM THE WAVES OF THE SEA.
SE0300870L (en) * 2003-03-27 2004-03-23 Swedish Seabased Energy Ab Wave power units
KR100524525B1 (en) * 2003-04-19 2005-11-01 임명식 An Electric Generating Apparatus Using Wave Force
US20040222638A1 (en) * 2003-05-08 2004-11-11 Vladimir Bednyak Apparatus and method for providing electrical energy generated from motion to an electrically powered device
US7105940B2 (en) * 2004-03-31 2006-09-12 General Electric Company Mobile renewable energy generator
US7352073B2 (en) * 2004-06-28 2008-04-01 Ames P Foerd Ocean wave energy converter having an improved generator and ballast control
DE102005003580A1 (en) * 2005-01-26 2006-07-27 Thomas Huss System for generating electricity from move motion using a cable anchored to the seabed and driving a float mounted generator via a reel
US7319278B2 (en) * 2005-06-01 2008-01-15 Donald Hollis Gehring Ocean wave generation
US7223137B1 (en) * 2005-07-15 2007-05-29 Sosnowski Michael J Floating, water current-driven electrical power generation system
US7470086B2 (en) * 2006-01-04 2008-12-30 Clifford Allen Jennings Submersible tethered platform for undersea electrical power generation
US20070258771A1 (en) * 2006-05-04 2007-11-08 Kenneth Merle Weldon Using the class #2 simple lever machine system to harvest and transport energy from water waves to shore for electricity and other uses
US7304398B1 (en) * 2006-05-30 2007-12-04 Hyun Bong Kim Spring activated energy transducer generating A/C electricity from natural forces-frictionless magnetic plate
MX2009000329A (en) * 2006-07-11 2009-03-20 Australian Sustainable Energy Wave energy converter.
US7632041B2 (en) * 2007-04-25 2009-12-15 Single Buoy Moorings, Inc. Wave power generator systems
KR101082076B1 (en) * 2008-10-08 2011-11-10 신익수 Wave-power generating module, wave-power generating unit comprising the wave-power generating module, and wave-power generating apparatus comprising the wave-power generating unit
US7845880B2 (en) 2008-10-09 2010-12-07 Rodney Ashby Rasmussen Systems and methods for harnessing wave energy
US20100107627A1 (en) * 2008-11-06 2010-05-06 Eric Andres MORGAN Buoyancy energy storage and energy generation system
US8686583B2 (en) * 2009-02-02 2014-04-01 Andrew L. Bender Ocean wave-powered electric generator
DE102011101409A1 (en) 2011-05-13 2012-11-15 Götz Siegmann Float power plant for utilizing wave energy, has generator that is driven by drive shaft by rotational movements of transmission wheel with lifting movement of float
US8823196B1 (en) * 2013-08-05 2014-09-02 Donald H Gehring Apparatus of wave generators and a mooring system to generate electricity
KR101543995B1 (en) * 2014-04-10 2015-08-13 도널드 에이치 게링 Apparatus of wave generators and a mooring system to generate electricity
KR101749036B1 (en) * 2015-06-24 2017-06-21 주식회사 인진 Floating Apparatus for wave power generation
US12037971B1 (en) 2022-12-22 2024-07-16 Rene Moreno Wave powered hydraulic piston generator assembly

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040124517A1 (en) * 2002-12-31 2004-07-01 George Hsieh Structural reinforcement for electronic substrate
WO2005054668A1 (en) * 2003-11-28 2005-06-16 Arlas Invest, S.L. Energy generating system using sea waves
ES2238167A1 (en) * 2003-11-28 2005-08-16 Arlas Invest, S.L. Energy generating system using sea waves
US20070089409A1 (en) * 2003-11-28 2007-04-26 Arlas Invest, S.L. Energy generating system using sea waves
WO2009090192A2 (en) * 2008-01-14 2009-07-23 Single Buoy Moorings Inc. Wave energy absorber
WO2009090192A3 (en) * 2008-01-14 2010-06-17 Single Buoy Moorings Inc. Wave energy absorber
CN101946088A (en) * 2008-01-14 2011-01-12 单点系泊公司 Wave energy absorber
US20110062713A1 (en) * 2008-01-14 2011-03-17 Single Buoy Moorings Inc. Wave energy absorber
US8421259B2 (en) 2008-01-14 2013-04-16 Single Buoy Moorings Inc. Wave energy absorber
US20110116925A1 (en) * 2008-07-16 2011-05-19 Matthew Whitelaw Apparatus and method for energy extraction
US8851837B2 (en) * 2008-07-16 2014-10-07 Matthew Whitelaw Apparatus and method for energy extraction
WO2024175954A1 (en) 2023-02-22 2024-08-29 Abbasi Akbar Power generation from waves on the seacoast

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GB0205732D0 (en) 2002-04-24

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